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Finding the Fourth Proportional to 135,291.80, 202,940.03 and 40,499.93

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Solution

The fourth proportional to 135,291.80, 202,940.03 and 40,499.93 is: 60,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,291.80 : 202,940.03 = 40,499.93 : x
  2. Step 2: Convert to fraction form
    135,291.80/202,940.03 = 40,499.93/x
  3. Step 3: Cross multiply
    135,291.80x = 202,940.03 × 40,499.93
  4. Step 4: Simplify right side
    135,291.80x = 8,219,057,617.80
  5. Step 5: Solve for x
    x = 8,219,057,617.80/135,291.80
  6. Step 6: Final answer
    x = 60,750.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.